!4111 函数 _equalCharsetClause 定义忘记返回值

Merge pull request !4111 from xiyanziran/master-return

src/common/backend/nodes/equalfuncs.cpp

@@ -3487,6 +3487,7 @@ static bool _equalCharsetClause(const CharsetClause* a, const CharsetClause* b)
     COMPARE_SCALAR_FIELD(charset);
     COMPARE_SCALAR_FIELD(is_binary);
     COMPARE_LOCATION_FIELD(location);
+    return true;
 }
 
 static bool _equalPrefixKey(const PrefixKey* a, const PrefixKey* b)